职业中毒可分为急性、慢性和亚急性三种形式

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问题:

职业中毒可分为急性、慢性和亚急性三种形式

考点:安全生产知识竞赛湖北安全生产知识竞赛湖北安全生产知识竞赛题库
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每种生物都是一个丰富的______,种类的多样性实质上是______的多样性.

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关于血管紧张素转化酶抑制药(ACEI)的应用,叙述正确的有()

A.是治疗老年心力衰竭的基石

B.早期应用有助于提高患者生存率

C.对老年心力衰竭患者的疗效明显弱于年轻患者

D.老年人应以最小剂量开始,逐步增至最大耐受剂量

E.剂量增加时,应密切观察患者的临床表现、血压、血钾和血尿酸水平

题型:判断题

以下不属于单选按钮控件所具有的事件动作是( )。

A.OnKeyPress

B.OnGetFocus

C.OnEnter

D.OnLostFocus

题型:判断题

Cellphone feels like a part of your body? A global survey has found that most people can’t live without their mobiles, never leave home without them and, if given a choice, would rather lose their wallet.

Calling mobile phones the “remote control” for life, market research firm Synovate’s poll said cell phones are so ubiquitous that by last year more humans owned one than did not.

Three-quarters of the more than 8,000 respondents polled online in 11 countries said they take their phone with them everywhere, which Russians and Singaporeans the most attached.

More than a third also said they couldn’t live without their phone, topped by Taiwanese and again Singaporeans, while one in four would find it harder to replace the mobile than their purse.

Some two thirds of respondents go to bed with their phones nearby and can’t switch them off, even though they want to, because they’re afraid they’ll miss something.

Mobiles have changed the nature of relationships, with the survey finding a fifth of all respondents set up first dates via text and almost the same number use the same method to end a love affair.

Apart from the obvious calling and SMS-ing, the top three features people use regularly on their mobile phones globally are the alarm clock, the camera and the games.

As for email and Internet access, 17 percent of respondents said they checked their inboxes or surfed the Web on their phones, led by those in the United States and Britain.

One in 10 respondents log onto(注册) social networking websites such as Facebook and MySpace regularly via mobile, again led by Britain and the United States.

Not everyone is tech savvy(科技通), however,37 percent of respondents said they don’t know how to use all the functions on their phone.

1. How many people of all respondents end a love affair via text?

A. About 4,800.                          B. About 3,600.

C. About 2,400.                          D. About 1,600.

2. According to the survey,       like surfing the Internet with a cellphone most.

A. Singaporeans    B. Russians            C. Americans            D. Chinese

3. Which of the following functions of cellphones is the least used?

A. Calling.                                  B. Playing games.

C. Taking photos.                            D. Surfing the Internet.

4. Which would be the best title of the passage?

A. People can live better without the cellphone.

B. People would rather lose their wallet than their cellphone.

C. Different uses of the cellphone.

D. New functions of the cellphone.

题型:判断题

下列氨基酸中,无相应遗传密码的是

A.异亮氨酸

B.天冬酰胺

C.脯氨酸

D.羟赖氨酸

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